Detachable-heel construction



' 1,633,449 M. MAYOROWITZ r DETACHABLE HEEL CONSTRUCTION June 21 192.7.

' Filed May 1. 1926 2 Sheets-Sheet 1 INVENTOR June 21, I927.

M. MAYOROWITZ DETACHABLE HEEL CONSTRUCTION I Filed May I. 1926 2Sheets-Sheet 2 Tar c115.

I 1 1 .12. I 113. V

INVENTOR Ila wine Maya/"0105 52.

ATTORNEYS Patented June 21, 1921,

' v 1,633,449 PATENT OFFICE.

, 'muarca mxonowrrz, or miw Your, NIY.

renownnear. cons'rnuc'non.

' Application mm Kay 1, 1m. semi m.- 100,147.

- This invention relates to improvements in 'detachableheelconstructions.

, 3 An object of the, invention isfto' provide a new and improvedvdetachable heel arranged to permit a'dea'ler in boots and shoes "leatherheel .or with 'a rubber heel or a heel loffpther material ,;according tothe desires of the customerfl v Another object is to enable the user ofa boot or shoe to readily replace "a worn-out vheel byanew one.

A further object is to securely hold the I detachableheel in place andto prevent mois-,

'ture, dust or other extraneous matter from passing into the jointformed between the detachable heel and its support.

In order to accomplish the desired result,

use is made of a plate attached to a lift secured'to the sole of theboot or shoe, the plate being provided with longitudinally extendingbayonet slots, a detachable heel provided with headed studs engaging thesaid bayonet slots, and removable fastening means extending through thesole, the sole lift and plate and engaging the said detachable heel. Useis also made of springs struck upon the plate and surroundin theterminals of the said bayonet slotsto engaged by the heads of the saidstuds to draw the detachable heel firmly against the sole lift.-

A practical embodiment of the invention is represented in theaccompanying drawings forming a art of this specification, in'

which similar 0 aracters of reference indicate corresponding parts inall the yiews.

Figure 1 is a pers ective view, showing a pair of shoes on the eet ofthe user equipped with my improvements;

Figure 2 is a perspective view, showing the heel lift removed from thesole plate;

. Fi re 3 is a view in longitudinal section, showing my improved heellift in operative position;

Figure 4 is a view in transverse section, on the line 4-4 of Figu re 3;Figure 5 is a view in transverse section v on the line 5-5 of Figure 3;

Figure 6 is a fragmentary view in section, showing my improved couplingmeans disassoeiated; t

Figure 7 is a plan or face view of the sole plate before it is securedto the heel;

Figure 8 is a fragmentary viewiin front elevation of the heel, showingthe lap elevated T Figure is of seat for a 100 ing pin;

Figure.10 is a view in section on the line Figure 11 is a-plan viewfof amodified form of heel lift;

lan view of a modified form Figure 12 is a view in section, on the line12-12 of Figure 11;

Figure 131511, fragmentary view in section illustrating a modification;

lgure 14 is a view in longitudinal section, similar to Figure 10 butillustrating another modification.

, 1 represents theheel of a shoe or slipper,

which maybe of any suitable material and WlllCh is provided at its lowerend with a spacer 2' that may be secured to the heel in any approvedmanner and may constitute a single piece or. several pieces and be ofany suitable material, in accordance with the desire of the trade.

3 represents my improved removable heel lift, and my invention residesin the means for connectin the lift and the heel, or, more specifically,t e lift and the spacer which constitutes a fixed part of the heel.

lReferring more particularly to Figures 1, 2, 3, 4,5, 6, 7 and 8,i-represents a sole plate, which is of metal of suitable thickness andof the desired resiliency and strength for the work to be performed.

This plate 4 conforms in shape to the lower end of the heel and issecured to the heel by nails 5 driven through openings 6 in the late 4and into the heel. The late is furt er secured in place by means 0 anintegral extension 7 located at the front edge of the" late and adaptedto be bent at substantia 1y right angles to-the plate along the dottedline 8 in Figure 7. v

At the free end of this extension 7 spurs 9 are provided which are bent'at right angles to the extension and are forced into the front of theheel, as indicated at 10 in Figure 3. This extension 7 is provided witha nail receiving opening '50- and with a larger 0 ing 11 for a purposewhich will more lly hereinafter appear.

Theextensmn 7 is completely covered by a lap 12 which is secured to thefront face of the heel in anyapproved manner, but I preferably employ anadhesive in addition to other securing means, which will be hereinafterexplained;

The sole plate 4 is provided with a lurality of spring seats 13 withbayonet slots 14 communicating therewith. The smaller ends of'thebayonet slots 14 are located at the center of the seats 13 with thelarger ends of the slots in the flat ormain portion of the sole plate. Imay employ any desired number of these spring seats, but I haveillustrated three which I find are ample for the purpose although I donot Wish to be limited to any particular number.

These s ring seats are formed by upwardly off-setting the metal of theplate 4, and are made with centraldepressions 15 therein. These springseats 13 may be outlined throughout a portion of their circumference bya slot or slit 16. which gives the effect to the seats of independentlyupwardly movable spring tongue carrying seats. The exact form of theseseats may vary as. for example, in Figures 9 and 10 I show a seat 17,corresponding to seat 13, which is integral with the plate 4'; or, inother words, the slit or cut 16 is omitted.

In Figure 14 I illustrate an integral seat 18 which has no centraldepression, and this constitutes a modified form of my invention.

The plate 4 ,is also formed with a looking spring finger 19, which isstampedor cut from the central portion of the late 4, extendstransversely of the plate, and has a downward resilient tendency so thatthe normal position of the free end of this finger 19 is below the lowerface of plate 4. The spring finger 19 has an opening 20 therein adjacentits free end and is formed with an upwardly offset portion constitutinga cam 51 located intermediate the ends of the spring finger, for apurpose hereinafter described. I

The heel lift 3 will of course conform in general contour with thecontour of the heel and maybe made of any desired thickness and also ofany suitable material. As a matter of fact, it is my intention to makethese lifts of various materials, such as leather, rubber or acombination of material, so that the wearer can replace not only a wornlift but can also substitute any other type of lift desired.

Each lift is provided with headed studs 21. corresponding in number andrelative location to the number and location of the spring seats 13.Another pin 22. which is without a head, is also carried by the lift 3and is so located that when the parts are in coupled relation this pin22 will be in the opening 20 of spring finger 19. I may, of course. makethis lift in various ways and do not wish to be confined to anyparticular manner of forming the same nor to the specific means forsupporting the pin.

In Figure 4, I illustrate the lift 3 as having a plate 23 embedded inthe material of the lift and upwardly offset at suitable points, and tothese upwardly offset parts of the lift the pins may be riveted, asshown at 24. Above the upwardly offset portions of the plates 23, thematerial of the 11ft is cut away or omitted, leaving recesses 25, and

portions of this upper face of the lift may be cupped or recessed, asshown at 26 in Figure 6, so as to. act as suction cups to grip thesurface of the sole plate 1 and aid the coupling pins and seats in theperfect securing and holding of the parts in coupled relationship.

I would call particular attention to Figures 3 and 8 of the drawings,wherein it will be noted that I secure an eyelet, which is of course arivet 27 in registering openings in the lap 12, and in the opening 11 ofextension 7 a conical or tapering guide 28 constitutes a part of theeyelet 27 and is so located as to admit a pin or other instrument intoposition to engage the cam 51 of spring finger 19 to elevate the freeend of the spring finger, lifting it off of the pin 22 to allow" theheel lift 3 to be removed. I

In the modification illustrated in Figures 11 and 12, the lift 3 isprovided with a plate 29, secured or embedded therein, and carrying thecoupling pins, as shown. This plate 29 may have spurs 30 of a length toextend entirely through. the lift and be upset at their lower ends, asshown at 31, or may be otherwise secured in place.

Figure 13 illustrates another form of device, showing a pin 21 which isprojected through the lift 3 and has its lowercnd spread or ex anded,as" shown at 32 and this pin also as a fixed flange 35 ad acent itsupper end which is embedded in the material of the lift. In thismodification, the pin 21 is shown cooperating with a spring finger 33,eorres ending to the spring finger 19 except that t is finger 33 isshorter and has an upturned end 34 against which the pin 21 bears toprevent retrograde movement of the'hcel lift to uncouple the same fromthe sole plate.

The operation of coupling or connecting the lift to the sole plate is asfollows: The headed pins 21 are moved through the larger ends of theslots 14, with the pin 22' resting on the spring finger 19. While thelift is pressed tightly against the sole plate 4 it is given a sidewiseor lateral movement, causing the heads of the-pins21 to ride over andonto the spring seats 13, thus drawing the spring seats downward againsttheir inherent resiliency or tension, and when the heads of the pinsride into the sockets or depressions 15 of the seats and the pin 22rides into the opening 20 of spring finger 19 the parts will be securelyheld and accidental displacement absolutely prevented. When theparts'are in coupled or locked relationship, the lift is held not onlyby the spring tension of .the spring seats 13 but there is a bindingaction betweenthe surfaces of the plate 4 and the lift 3. This ion maybe augmented by the recesses 26, illustrated in Figure 6, which create astrong suction to further clamp the parts together. In any event, theparts are so rigidly. cou pled that they will sustain all possiblestrain to which a device of this kind is naturally subjected withoutcausing the lift to be uncoupled or detached. The only way the lift canbe uncoupled or detached isby the'insertion of the pin through theeyelet 27 against the cam face 51 to lift the free end of the springfinger 19 out of coupled engagement with pin 22. The lift can then bemoved laterally of the heel, drawing the headed pins out of the bayonetslots 14 until the pinsare released.

A very desirable arrangement is to provide lugs-or enlargements 36 in atleast one wall of each of the keyhole slots '14 adjacent the smaller endof the slot so that a certain amount ofresistance is offered to themovement of the shanks of the pins, and the pins are thereby held in thecenter oftheir seats with greater effectiveness.

While I haveillustrated what I believe to bethe preferred embodiments ofmy invention,,- it is obvious that various slight changes. andalterations might be made in the general form of the parts describedwithout departing from my invention, and thedevicemay be employed forother uses,

, and hence Ido not limit myself to the precise details set forth butconsider myself at liberty to make such slight changes and alterationsas fairlyfall within thespirit and scope of the appended claims.

LA coupling, including a plate, a lift, movable spring seats cut fromthe plate, said movable seats being separated for a portion of theirlength from the plate and having bayonet slots extending transversely Pof the plate, pins projecting upwardly from "the lift, and heads on thepins adapted to be moved into the larger openings of the slots and movedalong the slots to the center of the seats when the lift is movedtransversely relative to the heel whereby the seats are put undertension to hold the lift against the plate. v

2. A detachable heel construction, includ- ,ing a sole plate adapted tobe fixed to aheel,

a lift, spring seats being detached for a por-v tion vof the lengththereof from the sole plate and movable relative to the plate and havingbayonet slots extending transversely of the plate, the narrower ends ofsaid slots being concentric'with the center of the seats, headed pinsprojecting upewardly from ing adaptedthe lift, the heads on the pins to'be moved into the larger openings of the slots and moved along theslots to the center of the seats when the liftis moved transverselyrelative to the heel whereby the seats are put under tensionto hold thelift against the plate, aheadless pin carried by and projecting upwardlyfrom the lift, and a spring finger having an openin receiving. saidheadless pin to hold the li ft against lateral movement.

3. A detachable heel construction including a sole plate adapted to befixed to a heel, a lift, spring seats carried by the sole plate andmovable relative to the plate and having bayonet slots extendingtransversely of the plate, said seats being detached from the plate fora portion of the length of the slot, pins projecting upwardly fromthelift, heads on the pins adapted to be moved into the. larger openingsin the slotsand along the slots,-to the center of the seats when thelift is moved transversely relative to the heel whereby the seats areput under tension" to hold the lift against the plate, lugs integrallyformed with the seats ad acent the narrow ends of the slots, said lugsfrictionallyengaging the pins and tending to hold the pins in the narrowends of the slots, and releasable means for holding the lift againstlateral movement. v

4. A detachable h 1 construction, includingaso le plate adaptedto befixed. to a heel, a lift, movable sprin seats cut from the sole plateandhavln'g1 a onet slots extending transversely of t e p ate, said seatsbeing detached from the sole plate for a portion of the length of theslot, the narrower ends of said slots being. concentric with the centerof the seats, pins projecting upwardl from the lift, heads on the pinsadapte to be moved into the larger 'openingsof the slots and moved alongthe slots to the center of the seats when the lift is moved transverselyrelative to the heel whereb the seats are put under tension to hol thelift against the plate, a in on the lift, and a spring finger on theplate adapted toengage said last-mentioned pin and hold the lift againstlateral movement, a cam on the spring finger, and a guide in the heel.for the admission of a tool to engagethe cam and lift the finger out oflocked e gement with the lastmentioned pin w ereby the lift may be movedto its releasing position.

5. A detachable heel construction, includ-' ing a sole plate adapted tobe fixed to a heel, a lift, spring seats struck from the sole plate andhavingl bayonet slots extending transversely of .t e plate, the narrowerends of said slots beingconcentric with the center of the seats, pinsprojecting upwardly from the lift, heads on the pins adapted to be movedinto the larger ope nings of he slots and moved along the slots to thecenter of the seats when the lift is moved transversely relativewtoftheheel whereb the seats are put under tension to hol the lift. against theplate,.an ex tension on the plate adapted to be" fixedlyand coveringsaid extension, said extension and laphavmg registering openingstherein, an eyelet in said openmg, a guide carried by the eyelet, and aspring finger locking the lift against lateral movement and adapted tobe engaged by an instrument projected through said guide to engage thenger and elevate it from its locklng position.

6. A detachable heel constructionincluding a sole plate adapted to befixed to a heel, a vulcanizable heel lift, sprin'g seats struck from thesole plate and having ba onetslots extending transversely of t e plate,an anchorin plate imbedded in the material of the li t and havingupwardly offset portions, pins carried by said upwardly offset plate andpro1ecting upwardly from the ift, and heads on the pins cooperable withthe bayonet slots, said lift having recesses in its upper face aroundthe pins thereof and overlying the upwardly ofiset portions of theanchoring plate whereby the weight is transmitted to the body of theheel. and

is not applied to the upwardly offset portions of the anchorin plate 7.A detachable hee construction, including a sole plate adapted to befixed to a heel, a lift, spring seats struck from the sole plate andhavin bayonet slots extending transversely of t e plate,v the narrowerends of. said slots being concentric with the center of the seats, insprojecting upwardly from the lift, and heads on the pins adapted to bemoved into the larger openings of the slots and moved along the slots tothe center of the seats when'the liftis moved transversely relative tothe heel ortions of said anchoring ing a sole whereby the seats are putunder tension to hold the lift against the plate, the metal of saidplate-around a portion of the seats being slit whereby the seats arefreeto-move relative to the plate.

8. A detachable heel constructi n including a solevplate adapted to bexed to a heel, a vulcanizable heel lift, movab1e spring seats cut fromthe sole plate and having b yonet slots extending transversely of the pate, said seats being detached from the sole plate for a portion of thelength of the bayonet slot, an anchoring plate imbedded in the materialof the lift, pins carried by said anchoring plate and projectingupwardly from the lift, and heads on the pins cooperable with thebayonet slots.

l 9. A detachable heel construction includlate having openings adaptedto receive astening devices'to aid in Se: curing it to the heel, saidsole plate also having an extension projecting an 'ularly from the soleplate and adapted to be disposed flush up against one face ofthe heel,said extension having spurs at its extremity designed to be driven intothe heel, a lift,

and releasable means for securing the-lift to the sole plate.

10. A detachable heel construction including a sole plate adapted to befixed to a heel, a heel lift, said sole plate bein provided with bayonetslots,.the metal of t e sole plate being cut adjacent an end of a slotto provide a movable seat, an anchoring plate carried by the lift, pinssupported by the anchoring plate and projecting outwardly from the liftand heads on the pins co-operable with the seats for aiding in securingthe length of the soleplate.

I MAURICE MAYOROWITZ.

